Gamma Pictoris, Latinised from γ Pictoris, is a single,[9] orange-hued star in the southern constellation of Pictor. It is a faintly visible to the naked eye with an apparent visual magnitude of 4.50.[2] Based upon an annual parallax shift of 18.45 mas as seen from Earth,[1] this star is located about 177 light-years from the Sun. It is moving away from the Sun with a radial velocity of +15.7 km/s.[5]

γ Pictoris

Location of γ Pictoris (circled)
Observation data Epoch J2000      Equinox J2000
Constellation	Pictor
Right ascension	05h 49m 49.66181s[1]
Declination	−56° 09′ 59.9808″[1]
Apparent magnitude (V)	4.50[2]
Characteristics
Spectral type	K1 III[3]
U−B color index	+0.98[4]
B−V color index	+1.10[4]
Astrometry
Radial velocity (Rv)	+15.7±0.8[5] km/s
Proper motion (μ)	RA: +81.13[1] mas/yr Dec.: −71.12[1] mas/yr
Parallax (π)	18.45 ± 0.15 mas[1]
Distance	177 ± 1 ly (54.2 ± 0.4 pc)
Absolute magnitude (MV)	0.83[2]
Details
Mass	1.59[6] M☉
Radius	11[6] R☉
Luminosity	60.75[2] L☉
Surface gravity (log g)	2.56[6] cgs
Temperature	4,600[7] K
Metallicity [Fe/H]	+0.15[2] dex
Rotational velocity (v sin i)	6.4[8] km/s
Other designations
γ Pic, CPD−56° 946, FK5 1156, GC 7353, HD 39523, HIP 27530, HR 2042, SAO 234154
Database references
SIMBAD	data

This is an evolved K-type giant star with a stellar classification of K1 III.[3] It has 1.59 times the mass of the Sun, while its diameter has been estimated as around 11 times that of the Sun.[6] The star is radiating 61[2] times the Sun's luminosity from its enlarged photosphere at an effective temperature of around 4,600 K.[7]

References

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[es] Gamma Pictoris